Soldering torch



March 31, 3 N. DREIBELBIS 9 SOLDERING TORCH Filed oct. 9. 1928 w/f n ro/e 4 r4 EZRA-755A 5/62 Patented Mar. 31, 1931 UNITED STA "res PATENT OFFICEEP" LYLE N. DREIBELBIS, OF LOS ANGELES; CALIFORNIA SOLDERING TORCH Application filed October 9; 1928. Serial No. 311,328.

are to generthe construcand the prinforms of soldering effective in producing a thorough mixture of 19 combustlble gas and oxygen to produce a' high temperatureflame that is especially appllcable for usein soldering operations.

provide atorch of the character referredto I 15 thatis constructed so as to efiectively prevent back fiaslror back fires, further to provide a torch that is relatively simple in construction, capable of being readily assembled or taken apart, and, further, to provide a torch having a removable tip or nozzle that is constructed so that the oxygen passing through said tip forms an annular cushion for the gas issuing from the jet orifice, with the result that'aperfect mixture of the gas and oxygen is obtained with a consequent production of the much desired long blue cone of flame as it ignites at the jet orifice of the centrally arranged tube.

A further object of my invention is to provide a soldering torch that will produce a relatively long slender flame of high temperature, and which is small in diameter in order that it will readily penetrate the cores or cells of the ordinary automobile radiator.

gasatthe point of discharge thereof intosaid burner tip. I i j 7 v Referring by numerals to the accompany "ing drawings,"10' designates" a cylindrical lVith the foregoing and other'objects in necessary.

the bore 12 at a rear of the shoulder 17 that is formedfbe the forward portion of calinember'lQ. "The forward end of member 19 terminates formed through.

member that forms'the'body of the torch, and formed through the forward portion of said body is an axial bore 11, the rear end of which communicates with a' smaller axial bore 12 that extends through the rear portion of said body'lO'.

Formed in the rear end of the body 10 is a threaded aperture 13 that receives the shank of a screw. '14, which latter functions as a 010- sure for the rear end o'f the bore 12, and by removing the screw 14 the bores 11 and 12 may be cleaned in the event'that it becomes Further objects-of my invention are to Y with'orfixed to the rear portion of body 10 is a depending member 15 that functions as a handle in the manipulation of the torch, and formed through this handle is' a-duct 16 that communicates with point a short distance to the Formed integral tween the bores 11 and 12. Duct 16 is for the purpose of conveying a suitable combusv tiblegas to the torch, and the lower end of the duct may be connected in any suitable manner to a source ofgas supply, preferably a tank. I 1

Formed through the front portion ofthe I handle 15 is a duct 18 that is connected to a suitable source of oxygen supply and the upper end of this duct communicates witlrthe rear end of the bore 11 that extends through body 10. I

concentrically arranged within the bore 11 is a cylindrical member 19 and the'rear end of this member is reduced in diameter,

as designated 'by 20, and said reduced rear end portion is pressed or driven into "the forward portion of thebore 12.

5A shoulder'2l is formed between the reduced rear end said member 19, thereby providing anjannu lar chamber 22 between theshoulde'rs 17 and 21; and which "annular chamber 1 communirelatively narrow} chamber '23 that surroun' ds the cylindri- V at or near the forward end of'thebody 1O portion 20 and the body of ones with the'end of duct 18. "Chamber 22 said member 19 :and the ill? reduced rear end portion 20 thereof is a. relatively small axially disposed duct 24 that communicates with the bore or passageway 12 in the rear portion of the torch body.

Screw seated on the forward portion of the torch body 10 is a tubular tip 25, the forward portion 26, thereof being material reduced in diameter and formed; on the interior of this tip between the body portion 25 and the reduced forward end portion 26 is an annular shoulder 27 that is rounded or convexincross section.

The opening 28 through the reducedforward portion 26 of the tip is in direct or axial alinement with and slightly larger in d ame er han hQaX albQIe t eus m 9-, I

In the use of my improv d orch a combustible, gasispermitted to. flow through duct lit-to discharge, nto bore 12, andthence flow forwardly through axial bore Qhand simultaneously oxygen is permitted; to flow; through duct l8 =into chamber; 22 andfrom-the latter the oxygen flows forwardly through thenarlOI Y: spacei23 that surrounds tubular mem- 'ber19f.

. By providingthe chamber. 22. at thedischarge end of duct 18 the oxygen will-cornpletely fill the chamber 22and pass therefrom thrqugh. the narrow annular. chamber. 23,,so

s ep duc rc lar ll exy ee h entirely surrounds the jetof gas asgsaid;oxyen n -gee di cha e mg h i wr ne t ducts-1 into. thetip at, the.,-forwardi encl of the torch body.

The annular wall or sheet. of, oxygen. in discharging, from the forward end of the an nular space 23 :-\vill,str il e against theccllrycd or convex shoulder 2.7 1 within the up, thereby rm nates a ula euebia itha l w nd u rounds the forwar lend of the gaseous du ct Qt, with the result that a thorou :mixture of the gas ,an oxygen. is produced within the tip, aud thect .of. gas issuing, from, the, forward end of the ductQ l willtake the form, of

an elongated needle pninted cone. which. passes through .the reduced-tubular, forward end .of the tip, as illustrated: iirFigr. 2,

i The, mixture of the oxygen with {the gas )roduces an elon ated needle oint ed flfame i P2. A r

that discharges from I reduced for-ward portionofJthe,tip, 2.6, as; 1-llust,rate d;;1n, F g.2, and such flame ,1nay,- be;- advantagegusly ernr radw n mr yineo rs sls eei ne 'et i rela ive ysmalli ec sses; rire se e en nstance theCelIs -o -cores ofithe ordinary automobi e r d ate lathe n at tba qln ane arn el;-

move the tubulan member. '19 frQIn-the to c I rrimeawutbestemmedimeymiaeu;a;

the spirit of my invention, the scope of which is setforth in the appended claims.

I claim as my invention:

15111- a soldering torch, a body provided withanaxially disposed bore, the rear portion of which is reduced in diameter, a tubular. member occupyingthe enlarged portion of-thebore in thebody ofthe torch the rear end portion 10f whiclrtubular, member isreducedindiameter andthe rear endofsaid reduced portion being, seated in the reduced rear; portion ofsaid bore ,there being. a shoulder formed between thelargerportion ,of'said tubularmemher and the, reduced rear end portion, gas. duct. leading to the. reduced rear-portion of. the boreein: thebody of; the torch, and arr-oxygen cduetleading to the rear portion of the largerforward, portion: of the bore-cinthe body; of saidtorch which duct discharges into the chamber formed,between the rear end of; the. larger. portion of the, tubiular member; and the; rear. end of the larger portion of the borein the ,torch body;

In asoldering torch, atorch. body, provided with. an axial bore, the reanportionof whiclris reduced in diameter, ascrew seated in the rear portionrof the torch body and closingthe; rear end of the :bore. therethrough, a tubular member-occupying the largtr pOlrtion of the bore in thetorch-bodywithits rean end seated in the forward-portion=ofthe reduced leading to saidichamberagas.duct leading to 7 A the. reduced rear portion. ofvthew bore in 1 the torchbody, and a tip, remo-vably positioned on the, forward end of'said-body and: surrounding zth'eidischfarge; end of the tubular member and'the, discharge-Vendor? thebore' through; said: torch:body.-

3.: In iaisoldering'torch, V a: torch, body,- provided: with ,anaxialibore, there aniportionrof which iszreduced insdiaineter, 31. screweated in the rear portion. of :the; torchcbodypand' 4 closingthegrear end 'of-thebore therethrough, a. tubular. member.occupying'sthe:langenportion of the bore in the torch bodynwith-itsrrear endiseatedimtheeforwardiportion ,of-the r duced rear; portion ofieaidrbiore, thcreibeing" anannularchamben=formedihetweenasaid tubHlZ-I'JmQIHbBK and; the: rear; end; of; the; nlarged forward portion of said bqrapan oxygemduet-leadingtdsaid cha nbar,.argassduct leading;tostheazeduceil rearz-ggirtiont t he bore in the torch body, a tip removably positioned on the forward end of said body and surrounding the discharge end of the tubular member and the discharge end of the bore through said torch body, and said tip being provided with an internally arranged convex shoulder immediately adjacent to the discharge end of the bore through said torch body.

In testimony whereof I arfiix my signature.

LYLE N. DREIBELBIS. 

